casting, or streaming

I have been streaming all kinds of data to my chromecast dongle for months now, lately I have been away from home and I am ready to scream. Xfinity dose not like casting, the gateway looks at it like a virus, nothing works, I even went old school and ran a HDMI cable from my laptop to the tv(i know cable people applauded ) my comcast cable gateway tried so hard to get me to stop, it fry,d my laptop. So I am willing to eat all the expence for the google stuff if comcast/nbc/unaversal/xfinity/verizon will buy me a new sony vaio with the i7 chip built for movies, music and storage. yeah, I hear the no coming alread